Skinnygirl Sangria By Bethenny Frankel. Following the wild success of the Skinnygirl Margarita, Bethenny Frankel couldn't decide what drink to add next... so she turned to you, posing the question on Facebook. Now she's proud to present the "new girl" that you overwhelmingly chose! Meet Skinnygirl Sangria. In true Skinnygirl fashion, it's smooth and delicious, low in calories (just 134 per 5 oz serving!) Best of all Skinnygirl Sangria also uses white grapes, so it's clear in color. That means you're not just saving calories, you're saving yourself from worrying about spills and stains.